Well, technically it does. After copying an item, when you right-click where you want to paste it to, if you hold the ⌥ (option) key, the 'Paste Item' option in

Well, technically it does. After copying an item, when you right-click where you want to paste it to, if you hold the ⌥ (option) key, the 'Paste Item' option in the contextual menu will change to 'Move Item Here' (effectively making it into a Cut & Paste).